Air control is critical for a successful project. At Seismic Staffing our experience has taught us to never have one point of failure. It is much safer to have individual control of each guns air supply that is visually verifiable (by anyone), then to have one header system with electronic control valves. If your control valve breaks or is not able to shut down a faulty gun, your job stops until a qualified technician can repair or replace. One look at our air distribution manifold gauges and you can see leaky air lines or malfunctioning guns and isolate them (assuming your drop out specs allow).